Re: [PATCH] sparse: Add GCC pre-defined macros for user-space

[Josh Triplett <josh@joshtriplett.org>]

On Sat, Aug 15, 2009 at 11:26:31PM +0300, Pekka Enberg wrote:
> --- a/lib.c
> +++ b/lib.c
> @@ -788,6 +788,14 @@ void create_builtin_stream(void)
>  		add_pre_buffer("#define __OPTIMIZE__ 1\n");
>  	if (optimize_size)
>  		add_pre_buffer("#define __OPTIMIZE_SIZE__ 1\n");
> +
> +	/* GCC defines these for limits.h */
> +	add_pre_buffer("#weak_define __SHRT_MAX__ %d\n", __SHRT_MAX__);
> +	add_pre_buffer("#weak_define __SCHAR_MAX__ %d\n", __SCHAR_MAX__);
> +	add_pre_buffer("#weak_define __INT_MAX__ %d\n", __INT_MAX__);
> +	add_pre_buffer("#weak_define __LONG_MAX__ %ld\n", __LONG_MAX__);
> +	add_pre_buffer("#weak_define __LONG_LONG_MAX__ %lld\n", __LONG_LONG_MAX__);
> +	add_pre_buffer("#weak_define __WCHAR_MAX__ %d\n", __WCHAR_MAX__);

These defines need to have the right type suffixes.  GCC defines
__LONG_LONG_MAX__ with an LL suffix, and __LONG_MAX__ with an L suffix.
You could either add the appropriate suffixes, or better yet, stringize
the constants and print them as strings.

- Josh Triplett